Deep-well pump



A. L. LIGON.

DEEfJ WELL PUMP.

APPLICATION FILED ocr. 3o, 19u.

RENEWED OCT. 9,1919.

Patented Mar. 2, 1920.

2 SHEETS-SHEET l.

ATTORNEY NVENTOR indugi/11131445.

'FIGLI A. L. LIGON.

DEEP WELL PUMP.

vRENEWED OCT. 9| 1919.

APPLICATION FILED OCT- 30.19l1- v 1,332,672. Patented Mar. 2, 1920.

2 SHEETS-SHEET 2.

l NVENTOR i Y l TKB-5 ATTORNEY UNITED STATES PATENT OFFICE.

ARTHUR 'LEE LIGON, OF KLLEEN, TEXAS.

'DEEP-WELL PUMP.

specification or Letters Patent.

Application filed October 30, 1917, Serial No. 199,241. Renewed October 9, 1919. Serial No. 329,647.

To all 'whom it may concern:

Be it known that I, ARTHUR Lne LisoN, a citizen of the United States, residing at Killeen, in the countyy of Bell and State of Texas, have invented certain new and useful Improvements in Deep-Well Pumps, of which the following is a specification.

My invention has relation to an improvement in deep well pumps of particularly that type or class wherein the working barrel and other accessories of the pump are adapted to be inserted at the proper point in a. well casing and to be withdrawn readily therefrom for the purpose of repairs or renewal of parts, and in such connection it relates more particularly to an improvement upon the pumpdescribed and claimed in my former Patents #1,07 3,257 of September 16, 1913, No. 1,120,820 of December 15, 1914, and No. 1,223,498 of April 24, i917.

To this end my invention broadly considered consists in the provision of means whereby without removal from the well the ordinary well casing may be adapted to readily support the pump barrel at the required distance above the fluid to be pumped and to readily support the seats for the necessary valves used in such pump structures. In my previous Patent #1,223,498 of April 24, 1917, the couplings between sections of the well casing were utilized for these purposes and in the driving of new wells such a casing with its peculiar couplings can be used. However itis theV principal object of my present invention to devise means whereby the well casing of ordinary construction and already installed can be fitted and arranged to support a removable pump barrel and to support vthe seats for the pump without withdrawing the casing and installing new pipe with improved couplings. y

The nature and scope of my invention will be more fully understood from the vfollowing description taken in connection with the accompanying drawings forming part hereof, in which- Figure 1 is a vertical sectional view of a well casing and pump embodying the main features of my invention.

Fig. 2 is a similar view of the well casing and upper and lower seats, with the pump barrel removed.

Fig. 3 is a similar view of the pump barrel removed from the casing.

Fig. 4 is a view similar to Fig. 1, but illustrating a modified form of my invenion.

Fig. 5 is a view similar to Fig. 4 but with the pump barrel removed, and

Fig. 6 is a vertical sectional view of the pump barrel of Fig. 4 removed from the well casing.

Referring to the drawings and particularly to Figs. 1, 2 and 3 which illustrate a pump for relatively shallow wells, 1 represents one of the sections of a well casing differing only from the ordinary well casing in the following two respects, namely:

At the top or upper end of each section the inner wall of the casing is shaped or deformed to receive and firmly hold a sleeve 2 which is driven into place and has intermediate of its ends an outward bulge 3 fitting into a corresponding channel in the interior of the casing. When so driven into the casing the sleeve 2 becomes a part of the casing decreasing but slightly the regulation interior diameter of said casing.

At the lower end of each section the -inner wall is screw-threaded to receive, if required, a thimble L having its interior frusto-conical to form a seat for the conical valve 5 carried at the lower end of the pump barrel 6.

In the drawings only that section of the casing 1 which incloses the pump barrel 6 is illustrated and this section of necessity is provided at its lower end with the thimble Li constituting the seat for valve 5. The other sections of the casing may if desired be provided with the upper sleeve 2 but the lower thimble et will'be absent.

To the top of the pump barrel 6 is screwthreaded a short tube 7 provided on that portion of its periphery which projects above the pump `with one or more leaf springs 8. Each spring 8 is united or otherwise secured at its upper end, as at9, to the tube 7 and the body of the spring is bent outward as at 10 to slide into and out of the bulged portion 3 of the sleeve 2. When the barrel 6 is properly seated in casing 1 it is firmly supported by the springs 8 of tube 7 in the casing itself or in the sleeve 2 of the casing.

In the form of my device illustrated in Figs. 1 to 3, the casing 1 must be shaped and formed on its interior at either end to receive respectively the sleeve 2 and the thimble i which coperate with parts or accessories to the pump barrel 6 inthe proper support and seating of said pump barrel. In other words in this form of my device the interior wall of the casing after being modified o1' altered slightly will receive and support the pump barrel so that said barrel may be placed in position or removed Without displacement or disarrangement ofthe casing.

In Figs. 4, 5 and 6 which illustrate a pump for deep :wells the construction is such that theinterior wall'of thecasing 1 is. unchanged and unaltered from the ordinary form of casingl yet will. support and seat the j pump barrel 6k and its valve 5. In thisforin off myy device the valve seat consists ofv a fnustofoonical thimble 14' having a tubular extension 15 at its base whichextends some,-

distance-intota-sleeve 16. The-.lower end'of theV sleeve 16 is provided on its periphery with-one ormore-bow springs 17 which serve to lit.y the .sleeve` 16 relativelyV tight into the interior ofthecasing 1. Above these springs 17 the,-bodyT of the,V sleeve; 16.4 is slotted and through one or morefof these slots one or more gripping bars 1S project, theupper end; of eacl1- bar' 18 being riveted or otherwisefa-stened? toI the.- interior of the sleeve 16.

rllhetubular. extension 15 has its-.periphery contoured to form. a wedge in cross-section and, lits against thev back of the' bars 18.. Whenl now the thimble A 14-with its extension lisipressed. downward infthe sleeve16 (as under the weight. of the supported pump barrel. 6 and its valve 5), the bars 18': are pressed outward to firmly gripthe interior WalLoflthefcasingl, and thusresist e'ffecf` tively,y any tendency. .to dislodge: the-sleeve.16

andi the; supported valve" seat- 14 from\ the position it is to occupy in the casing.; Tov

take up for minute-'variations of pressureof thefvalve 5. in the thimble,14 said thimble 14 traverses at packingy ring 19 located-upon the lupper. edge -of the .sleeve y16. This-packn l ingfrfing'; 19 servesfalsoto preventleakage ofl sand or water intothe space-between/the pump barrel 6 land casing 1.

The tubular extension 15 projyectsin. the forme ofl a yslotted tubular base 20; the slots 214 of which being inalinement with the .gripe barsr18. When now for the purpose offremovalof theseat-.from'the casing the thimble14, extensionl and base 2O are pulled` upward, the base 20fis-raised to a positionopposite-the grip'bars 18u-so that they mayl spring upward through slots 21.A and thus release the sleeve-16 fromfengagement with;

easing, 1.y andto `lock the sleeve 16 tothe base 2.0 carried bythe valve seat 14 and its eXtenf sion 15; It follows fromi this description that a downward movement of thimble14 iup-sleeve 16 vwill serve to .throwthe grip bars 1'8` againstf the casing whereas an .upwardl movement of said'thimble 14 in sleeve 16 will'first permit of release of grip bars 18 from the casing and thereafter the interlocking of the sleeve 16 with the base 20 through the grip bars 18 and slots 21.

lThey upperend ofthe pump barrel 6 is providedwith a similar means for gripping said end of the barrel to the interior of casing 1. Thus in the upper end of the barrel 6 isscrewthreaded or otherwise removably secured a sleeve 26l (corresponding to-.sleeve 16 of the lower seat). The sleeve 26 is provided with one or more grip bars 28A arranged to be forced outward by the tubular extension of a thimble 24.- When the;

thimble-24is'. raised fthefgrip .bars 28-w-illfall into-the slots31 ofthe tubularbase() belowk the pistonofthe; pump.- (notshown.) issimi.-4

lar to. thatillustrated in Fig,.1 andireciprocates.-` in the, barrel 6.A below the. base 30. and

above the valvei5. WIK-hen the;pump 'barrel6A islto be withdrawn from.the casing; thepis.-A

ton. with its 'rod ispulleds upward against this base. 30 to. elevate. the thimble24-and `to.

release the. grip. barsy 28: Thereafter thepump barrel maybe drawn upwardthrough the casing.. I/Vhen :thepumpbarrel-hasbeen.

removedatoolv4 may. be inserted to grip` the lower thimble 14,. andwhen saidthimbleis.

slightly. elevatedr the grip bars; 18 are. re-

leasedfrom the casing andthe :seat forvalve 5 Amay' thereafterz' bedrawn upward through and out-of the casing;

'In Figs. 12 and Szapullon-the p ump rod will` dislodge the flat rleaflspri'ngs 8- from2 the bulged:portionaofsleeveSandthereaftenthe. pump .A barrel" canA be readily removed from the casing; Inthisform of. pump the-seat orlower kthimble 4 is notremoved fromthe casing..

Having ythus .described the nature-and ob.- jeots of my.I inventionwhat If. claim as new and. desire to. secure by Letters-Patentisz- 1. Inv al pump, a. section of; well,k casing, apumpy barrel. inclosed therein, detachably.- supportingthe upper end'ofisaid. barrel. uponv the. interior of thelv oasing,.` a valve. carried` by, the pump.l barrel; a valve. seat consisting ofa thimble, tubularexten` sion and a slotted b.ase,.af-sleeve.into which the" extension andi base. project,... a.l grip bar. carried by` the. sleeve vand arranged .to trav.- erse Vthe sleeve outward. to. grip.v the., easing when the extension and thimble areprovjected into said.-sleeve. y

2. Ina pumpa-.sec.tion.of.well oasingga pump barrel inclosedtherein, a meansfor. detachably` supportingthe` uppenend-.of said barrel upon the. interior. of'tliecasing,A a. valve carried by the pump barreha valvef seat consisting `of. a` thimble, tubular: eXtension and a slotted base,.a sleeve into which a means i for the extension and base project, a grip bar carried by the sleeve and arranged to traverse the sleeve outward to grip the casing when the extension and thimble are projected into said sleeve, and said bar arranged to spring inward into the slotted base when the base extension and thimble are drawn out of said sleeve.

3. In a pump, a section of casing, a pump barrel inclosed therein, a sleeve detachably secured to the upper end of the pump barrel, a grip bar secured at one end to the interior of the sleeve and having its body arranged to project 4through a slot in the sleeve, a thimble, tubular extension and slotted base arranged to project through said sleeve to extend the grip bar outward from the sleeve into locking engagement with the casing and to be withdrawn from said sleeve to release the grip bar from the casing and to interlock the same with said slotted base.

In testimony whereof I have signed my name to this specification.

ARTHUR LEE LIGON. 

